In his sixth season with the Hawks since making the switch from Port Adelaide, Impey has played 87 games in the brown and gold to be a key role player for the Victorian club at half-back.
Having worked his way back from heavily interrupted seasons due to injury, Impey has played in all 12 matches this year to average 20.42 disposals, 2.50 rebound 50s and 2.00 tackles per game.
Off-contract in 2023 after adding a further three years to his deal ahead of the 2020 season, Impey has pledged his allegiance to the Hawks to see out a further three years at Waverley and be locked in until the end of the 2026 season.
“We are thrilled Jars has shown his commitment in this new deal, it's a real sign that he believes in the direction we are headed as a club,” Hawks list manager Mark McKenzie said.
“Along with Jars' elite speed and line breaking ability, he importantly adds another layer of leadership for our young defenders, helping fast-track their development.
“Jars' is among our most reliable performers each week; he provides great experience, and we see him being a crucial part of what we are trying to build here at Hawthorn."
Impey is expected to line up for the Hawks on Saturday at the MCG when they host Brisbane for Round 13 in what will be the 27-year-old's 163rd game in his career.
Impey's signature adds to a strong few months of re-signings for the Hawks in the past 12 months, with Will Day, James Sicily, Jai Newcombe, Mitch Lewis, Dylan Moore, Sam Butler, Ned Reeves, Cam Mackenzie, Max Ramsden, Josh Ward and Connor Macdonald all recommitting to the club since May last year.